Types of volcanoes, 5th grade sci.

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Transcript of Types of volcanoes, 5th grade sci.

This prezi introduces three types of volcanoes (GPS S5E1a, S5E1b)By Kelley Ritter, Feb. 9, 2013Composite VolcanoesAlso called Strato-volcanoesThese volcanoes are large (up to 10,000 feet tall and a10 km diameter), symetrical, with steep sides.They are built with alternating layers of lava flow, ash, and cinder.They have an explosive eruption from more then one opening.Shield VolcanoesVesuvius, Krakatoa, Fujiyama, Mount St. Helens are composite volcanoesThese volcanoes are broad with gentle slopes, large (over 10s of km across and 10s of thousands of feet high), with a large crater at the summit.90% of the volcano is frozen lava.They have quiet eruptions with great outpourings of lava from more than one opening.Mauna Loa, a shield volcano) is the largest single mountain in the world.Cinder Cone VolcanoesCinder cone volcanoes have a bowl shaped crater, steep sides, but is smaller (1,000 feet tall and 1 mile across, the size of a hill).They are made of mostly loose, grainy cinders and very little lava.They have an explosive eruption from only one opening.Paricutin, Pu'u ka Pele, and Red Hill are cinder cone volcanoes.extremescience.comdnr.sc.govgeology.utah.govvolcano.oregonstate.eduete.cet.eduReferencesFifth grade science